Well I would have to say in a situation like this it all depends upon who the person is. I mean if the person is someone that I despise or someone that despises me or someone that is far from perfection. Then I say do something that involves a giant ACMEŽ anvil.
Now if this person is someone of liking, or someone of sheer beauty then I'd put them through the suffering of satisfying my most dirty thoughts and ideals. Note after a while I think it would become less and less like suffering though, hehe
Now if this damsel, is not really a damsel as in she looks like a damsel but is anatomically not a damsel or is a man in disgiuse then, I'd tie the fake to the top of an train car which inside that car is acid, and whilst the train speeds down the track an anvil would be triggered, drive the fake through the roof and down into the acid.
when I go to kidnap her, I'll make her leave a note saying she's in the opposite place of where she is, check the note over for any clues she might have left, then take her away :> not my evil lair, noooo...too cliche
Then, I don't want prince charming to hear her cries, I'd rip her vocal cords out with my surgical madwomanness...
After that, since I want her dead I'd put antifreeze in her blood system (wonderful poison, friend told me about it) and when she comes to, rip her fingernails out one by one and drip either iodine, salt then rubbing alcohol, or a mix of the three
theeen, prob'ly leave her under the pendulum with a few scorpians crawling on her... pit with an opening for the blade :>
As soon as I do that, I make my escape instead of hanging around...